A heavy pack (was acting as mule) and atrocious weather on the first day and a half meant almost no birds or birding. The summit/descent day was wonderful - for weather, birds, and scenery.
Several Coal Tits were found just below the glacial cirque. Taiwan Bush Warbler were singing (not seen) in the forest just above the trailhead at Wuling Farm.
Coal Tit Periparus ater "Endemic subspecies (P. a. ptilosus)"